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Konstantin Belousov 75c586a4c8 In r198506, kern_sigsuspend() started doing cursig/postsig loop to make 
sure that a signal was delivered to the thread before returning from
syscall. Signal delivery puts new return frame on the user stack, and
modifies trap frame to enter signal handler. As a consequence, syscall
return code sets EINTR as error return for signal frame, instead of the
syscall return.

Also, for ia64, due to different registers layout for those two kind of
frames, usermode sigsegfaulted when returned from signal handler.

Use newly-introduced cpu_set_syscall_retval(9) to set syscall result,
and return EJUSTRETURN from kern_sigsuspend() to prevent syscall return
code from modifying this frame [1].

Another issue is that pending SIGCONT might be cancelled by SIGSTOP,
causing postsig() not to deliver any catched signal [2]. Modify
postsig() to return 1 if signal was posted, and 0 otherwise, and use
this in the kern_sigsuspend loop.

Proposed by:	marcel [1]
Noted by:	davidxu [2]
Reviewed by:	marcel, davidxu
MFC after:	1 month
2009-11-10 11:46:53 +00:00
..
_bus_dma.h
Break out typedefs from bus_dma.h to _bus_dma.h so that we can get the
2006-09-03 00:26:17 +00:00
_iovec.h
…
_lock.h
- Embed the recursion counter for any locking primitive directly in the
2008-05-15 20:10:06 +00:00
_lockmgr.h
- Embed the recursion counter for any locking primitive directly in the
2008-05-15 20:10:06 +00:00
_mutex.h
- Embed the recursion counter for any locking primitive directly in the
2008-05-15 20:10:06 +00:00
_null.h
*sigh*, while the kernel built, userland C did not. Revert the previous
2009-05-11 21:13:00 +00:00
_pthreadtypes.h
Fix the visibility of several prototypes. Also move pthread_kill() and
2009-03-14 20:10:14 +00:00
_rmlock.h
Initial checkin for rmlock (read mostly lock) a multi reader single writer
2007-11-08 14:47:55 +00:00
_rwlock.h
- Embed the recursion counter for any locking primitive directly in the
2008-05-15 20:10:06 +00:00
_semaphore.h
…
_sigset.h
…
_sockaddr_storage.h
Move the duplicate definition of struct sockaddr_storage to its own
2009-09-08 10:39:38 +00:00
_stack.h
Optimize lockmgr in order to get rid of the pool mutex interlock, of the
2008-04-06 20:08:51 +00:00
_sx.h
- Embed the recursion counter for any locking primitive directly in the
2008-05-15 20:10:06 +00:00
_task.h
revert changes accidentally included in last commit
2008-07-18 06:22:57 +00:00
_timespec.h
…
_timeval.h
Remove various bits of conditional Alpha code and fixup a few comments.
2006-05-12 05:04:46 +00:00
_types.h
Introduce accmode_t. This is required for NFSv4 ACLs - it will be neccessary
2008-10-28 13:44:11 +00:00
aac_ioctl.h
Add additional featuresState.fBits entries to simplify compiling and
2009-10-29 17:21:41 +00:00
acct.h
Increase precision of time values in the process accounting
2007-05-22 06:51:38 +00:00
acl.h
Add NFSv4 ACL support to libc.
2009-06-25 12:46:59 +00:00
agpio.h
…
aio.h
Namespace: aio_waitcomplete() is a BSD extension.
2009-03-14 19:17:00 +00:00
alq.h
…
apm.h
Define APM_ENT_NAMELEN and APM_ENT_TYPELEN for general use.
2008-06-12 04:37:37 +00:00
assym.h
…
ata.h
MFp4:
2009-11-04 15:24:32 +00:00
bio.h
As discussed in the devsummit, introduce two fields in the
2009-06-11 09:55:26 +00:00
bitstring.h
…
blist.h
add malloc flag to blist so that it can be used in ithread context
2008-05-05 19:48:54 +00:00
buf_ring.h
- add drbr routines for accessing #qentries and conditionally dequeueing
2009-06-09 19:19:16 +00:00
buf.h
nfs_write() can use the recently introduced vfs_bio_set_valid() instead of
2009-05-31 20:18:02 +00:00
bufobj.h
Remove the struct thread unuseful argument from bufobj interface.
2008-10-10 21:23:50 +00:00
bus_dma.h
When bouncing pages, allow a new option to preserve the intra-page
2009-02-08 22:54:58 +00:00
bus.h
Style fixes to the function prototypes for bus_alloc_resources() and
2009-10-15 14:55:11 +00:00
callout.h
add callout_schedule; besides being useful it also improves
2008-08-02 17:42:38 +00:00
cdefs.h
Revert my change; reintroduce __gnu89_inline.
2009-06-08 18:23:43 +00:00
cdio.h
…
cdrio.h
…
cfictl.h
Add support for frobbing Intel StrataFlash Protection Registers:
2009-02-05 18:12:07 +00:00
chio.h
…
clock.h
Now that all platforms use genclock, shuffle things around slightly
2008-04-22 19:38:30 +00:00
condvar.h
- Pass the priority argument from *sleep() into sleepq and down into
2008-03-12 06:31:06 +00:00
conf.h
Turn unused structure fields of cdevsw into spares.
2009-10-31 10:35:41 +00:00
cons.h
Allow multiple console devices per driver without insane code duplication.
2009-08-24 10:53:30 +00:00
consio.h
Fix our ioctl(2) implementation when the argument is "int". New
2006-09-27 19:57:02 +00:00
copyright.h
Bump the odometer of the years, this time a bit early for 7.1R.
2008-12-30 04:48:59 +00:00
cpu.h
Provide a new CPU device driver ivar to report the nominal speed of the
2009-05-31 08:59:15 +00:00
cpuctl.h
- Add support to atomically set/clear individual bits of a MSR register
2009-06-30 12:35:47 +00:00
cpuset.h
- Add a new cpuset macro, CPU_FILL(), for setting the set to all 1s.
2009-06-23 06:57:46 +00:00
ctype.h
…
dataacq.h
…
device_port.h
…
devicestat.h
…
digiio.h
Fix our ioctl(2) implementation when the argument is "int". New
2006-09-27 19:57:02 +00:00
dir.h
…
dirent.h
o Re-word a comment.
2006-08-16 09:34:56 +00:00
disk.h
Revert revisions 188839 and 188868. Use of the ioctl in geom_dev.c
2009-07-08 05:56:14 +00:00
disklabel.h
Initial storage functionality for U-Boot support library.
2008-11-19 17:34:28 +00:00
diskmbr.h
…
diskpc98.h
Move the PC98_[MS]ID_* defines from g_part_pc98.c to diskpc98.h.
2009-03-11 13:15:42 +00:00
dkstat.h
…
domain.h
Introduce and use a sysinit-based initialization scheme for virtual
2009-07-23 20:46:49 +00:00
dtrace_bsd.h
Add DTrace probes to the NFS access and attribute caches. Access cache
2009-03-24 17:14:34 +00:00
dvdio.h
…
elf32.h
Convert types 'Elf{32,64}_Nhdr' into aliases of the generic 'Elf_Note'
2006-10-17 05:43:30 +00:00
elf64.h
style(9)
2009-01-01 02:08:56 +00:00
elf_common.h
Added DT_GNU_HASH entry for GNU-style hash table.
2009-04-10 21:24:18 +00:00
elf_generic.h
style(9)
2009-01-01 02:08:56 +00:00
elf.h
Remove _SOLARIS_C_SOURCE compatibility definitions. Unfortunately the
2007-11-28 21:54:46 +00:00
endian.h
…
errno.h
Add a new errno, ENOTCAPABLE, to be returned when a process requests an
2009-10-07 20:20:51 +00:00
eui64.h
…
event.h
Change unsigned foo to u_foo as required by style(9).
2009-09-22 16:16:02 +00:00
eventhandler.h
rev bpf attach/detach event api to include the dlt
2009-05-25 16:34:35 +00:00
eventvar.h
…
exec.h
…
extattr.h
Introduce accmode_t. This is required for NFSv4 ACLs - it will be neccessary
2008-10-28 13:44:11 +00:00
fail.h
fail(9) support:
2009-05-27 16:36:54 +00:00
fbio.h
Fix VESA color palette corruption:
2009-11-03 20:22:09 +00:00
fcntl.h
Add two new fcntls to enable/disable read-ahead:
2009-09-28 16:59:47 +00:00
fdcio.h
…
file.h
style(9)
2009-01-01 02:29:17 +00:00
filedesc.h
- Implement a lockless file descriptor lookup algorithm in
2009-05-14 03:24:22 +00:00
filio.h
Add FIONSPACE from NetBSD. FIONSPACE is provided so that programs may
2009-06-30 13:38:49 +00:00
firmware.h
Cleanup and document the implementation of firmware(9) based on
2007-02-15 17:21:31 +00:00
fnv_hash.h
…
gmon.h
Move the PC_TO_I() and KCOUNT() macros so they aren't GUPROF specific
2006-03-29 18:17:03 +00:00
gpt.h
Add a couple more Apple GPT entries and NetBSD GPT entries.
2008-09-05 17:45:24 +00:00
hash.h
Fix a compiler warning so hash.h can be included in the kernel. This changes
2007-04-09 22:55:14 +00:00
iconv.h
Split tolower/toupper code from usual xlat16 kiconv table, and make it
2009-06-22 17:09:46 +00:00
imgact_aout.h
kern_execve.c hasn't been around in ages, so update the file(s) where
2009-09-09 06:49:49 +00:00
imgact_elf.h
Make sure FreeBSD binaries without .note.ABI-tag section work
2009-08-30 14:38:17 +00:00
imgact.h
Supply AT_EXECPATH auxinfo entry to the interpreter, both for native and
2009-03-17 12:53:28 +00:00
inflate.h
…
interrupt.h
- Fix several off-by-one errors when using MAXCOMLEN. The p_comm[] and
2009-10-23 15:14:54 +00:00
ioccom.h
Protect _IOC's 'len' and 'inout' parameters so that _IOC can be used in
2008-08-28 18:29:59 +00:00
ioctl_compat.h
Perform cleanups to the TTY headers:
2009-09-06 09:39:40 +00:00
ioctl.h
Clean up <sys/ioctl.h>.
2009-05-09 19:01:24 +00:00
ipc.h
Change the ABI of some of the structures used by the SYSV IPC API:
2009-06-24 21:10:52 +00:00
ipmi.h
Update the ipmi(4) driver:
2006-09-22 22:11:29 +00:00
jail.h
Make it possible to change the vnet sysctl variables on jails
2009-08-13 10:26:34 +00:00
joystick.h
…
kbio.h
Make the keyboard layer Unicode aware.
2009-09-19 17:56:26 +00:00
kdb.h
DTrace can enter the debugger from a probe. Add a WHY definition for this.
2008-05-23 04:00:44 +00:00
kenv.h
…
kernel.h
Random number generator initialization cleanup:
2009-10-20 16:36:51 +00:00
kerneldump.h
PowerPC, meet kernel core dumps. The support is based
2009-04-04 02:12:37 +00:00
kobj.h
KOBJMETHOD: throw the switch on kobj method signature checking
2009-06-12 09:05:23 +00:00
ksem.h
Rework the lifetime management of the kernel implementation of POSIX
2008-06-27 05:39:04 +00:00
ksyms.h
Add the ksyms(4) pseudo driver. The ksyms driver allows a process to
2009-05-26 21:39:09 +00:00
kthread.h
kthread_exit needs no stinkin argument.
2007-10-26 17:03:22 +00:00
ktr.h
In non-debugging mode make this define (void)0 instead of nothing. This
2009-06-21 09:01:12 +00:00
ktrace.h
Style fix.
2009-10-23 15:10:41 +00:00
libkern.h
This commit fixes the issue with alias_sctp.c. No
2009-02-14 11:34:57 +00:00
limits.h
…
link_aout.h
…
link_elf.h
style(9)
2009-01-01 02:11:01 +00:00
linker_set.h
…
linker.h
Implement a facility for dynamic per-cpu variables.
2009-06-23 22:42:39 +00:00
lock_profile.h
In non-debugging mode make this define (void)0 instead of nothing. This
2009-06-21 09:01:12 +00:00
lock.h
Add the address of the lock to the KTR_LOCK trace.
2009-08-14 10:57:57 +00:00
lockf.h
The advisory lock may be activated or activated and removed during the
2009-05-24 12:39:38 +00:00
lockmgr.h
Introduce support for adaptive spinning in lockmgr.
2009-06-17 01:55:42 +00:00
lockstat.h
Add the OpenSolaris dtrace lockstat provider. The lockstat provider
2009-05-26 20:28:22 +00:00
mac.h
Update comments in mac.h.
2007-02-06 16:24:57 +00:00
malloc.h
Garbage collect now-unused struct malloc_type fields, bump __FreeBSD_version
2009-04-19 11:20:57 +00:00
mbpool.h
…
mbuf.h
Add m_mbuftouio() helper function to copy(out) an arbitrary
2009-06-22 22:20:38 +00:00
mchain.h
…
md4.h
…
md5.h
Add definitions for MD5_BLOCK_LENGTH, MD5_DIGEST_LENGTH and
2006-03-15 19:47:12 +00:00
mdioctl.h
…
memrange.h
Initial suspend/resume support for amd64.
2009-03-17 00:48:11 +00:00
mman.h
Add MAP_ANONYMOUS.
2009-11-06 07:17:31 +00:00
module.h
- Invoke MOD_QUIESCE on all modules in a linker file (kld) before
2008-12-05 13:40:25 +00:00
mount.h
- Turn the third (islocked) argument of the knote call into flags parameter.
2009-06-28 21:49:43 +00:00
mouse.h
Spell "Kensington Thinking Mouse" correctly.
2006-12-18 18:48:28 +00:00
mpt_ioctl.h
Add a new personality to mpt(4) devices to allow userland applications to
2008-05-06 20:49:53 +00:00
mqueue.h
…
msg.h
Change the ABI of some of the structures used by the SYSV IPC API:
2009-06-24 21:10:52 +00:00
msgbuf.h
Make /dev/klog and kern.msgbuf* MPSAFE.
2009-11-03 21:06:19 +00:00
mtio.h
…
mutex.h
In non-debugging mode make this define (void)0 instead of nothing. This
2009-06-21 09:01:12 +00:00
namei.h
Extend the cn_flags field of the struct componentname to 64 bits to have
2009-07-09 18:49:26 +00:00
nlist_aout.h
…
osd.h
Introduce the extensible jail framework, using the same "name=value"
2009-04-29 21:14:15 +00:00
param.h
- Bump __FreeBSD_version to reflect the point when EVFILT_USER kevent filter
2009-09-23 12:33:32 +00:00
pciio.h
- Add a new ioctl to /dev/pci to fetch details on an individual BAR of a
2009-02-02 22:04:40 +00:00
pcpu.h
Put minimum alignment on the dpcpu and vnet section so that ld
2009-08-12 10:26:03 +00:00
pioctl.h
Fix our ioctl(2) implementation when the argument is "int". New
2006-09-27 19:57:02 +00:00
pipe.h
- Make maxpipekva a signed long rather than an unsigned long as overflow
2009-03-10 21:28:43 +00:00
pmc.h
Reserve numbers for XScale.
2009-10-02 11:14:12 +00:00
pmckern.h
Support sparsely numbered CPUs.
2008-09-22 10:37:02 +00:00
pmclog.h
- Add support for PMCs in Intel CPUs of Family 6, model 0xE (Core Solo
2008-11-27 09:00:47 +00:00
poll.h
…
posix4.h
Update #includes list.
2006-11-11 16:19:12 +00:00
power.h
…
priority.h
Replace (name) with Henric Vestergaard Draboel since it was clear that
2007-01-08 21:21:45 +00:00
priv.h
Add two new privileges for use by OpenAFS, which will be supported for
2009-07-30 08:41:06 +00:00
proc.h
Extract the code that records syscall results in the frame into MD
2009-11-10 11:43:07 +00:00
procfs.h
Widen psaddr_t from uintptr_t to uint64_t. This results in an
2008-09-14 16:52:42 +00:00
protosw.h
Introduce an infrastructure for dismantling vnet instances.
2009-06-08 17:15:40 +00:00
ptio.h
…
ptrace.h
Add members pl_sigmask and pl_siglist into ptrace_lwpinfo to get lwp's
2006-02-06 09:41:56 +00:00
queue.h
Rename the queue macros I introduced last year.
2009-05-27 19:28:04 +00:00
random.h
…
reboot.h
…
refcount.h
Remove debugging cruft.
2008-07-23 16:44:20 +00:00
regression.h
…
resource.h
Implement global and per-uid accounting of the anonymous memory. Add
2009-06-23 20:45:22 +00:00
resourcevar.h
Implement global and per-uid accounting of the anonymous memory. Add
2009-06-23 20:45:22 +00:00
rman.h
Add a convenience function rman_init_from_resource for initializing
2006-06-12 04:06:21 +00:00
rmlock.h
Make the rmlock(9) interface a bit more like the rwlock(9) interface:
2009-05-29 10:52:37 +00:00
rtprio.h
Replace (name) with Henric Vestergaard Draboel since it was clear that
2007-01-08 21:21:45 +00:00
runq.h
- Restore runq to manipulating threads directly by putting runq links and
2008-03-20 05:51:16 +00:00
rwlock.h
When releasing a read/shared lock we need to use a write memory barrier
2009-09-30 13:26:31 +00:00
sbuf.h
Add sbuf_new_auto as a shortcut for the very common case of creating a
2008-08-09 11:14:05 +00:00
sched.h
- Use DPCPU for SCHED_STATS. This is somewhat awkward because the
2009-06-25 01:33:51 +00:00
sdt.h
Adding missing ";"'s required by some SDT_PROBE_DEFINEx() macros.
2009-03-03 18:23:16 +00:00
select.h
…
selinfo.h
Refactor select to reduce contention and hide internal implementation
2007-12-16 06:21:20 +00:00
sem.h
Change the ABI of some of the structures used by the SYSV IPC API:
2009-06-24 21:10:52 +00:00
sema.h
…
semaphore.h
Change SEM_VALUE_MAX (maximum value of a POSIX semaphore) from UINT_MAX
2008-06-26 13:51:25 +00:00
serial.h
o Don't make the SER_INT_* defines visible to userland. They
2006-03-30 17:24:42 +00:00
sf_buf.h
…
sglist.h
Change the 'resid' parameter to sglist_consume_uio() from an int to a
2009-08-20 19:23:58 +00:00
shm.h
Change the ABI of some of the structures used by the SYSV IPC API:
2009-06-24 21:10:52 +00:00
sigio.h
…
signal.h
Correct the visibility macro surrounding SIGSYS.
2008-01-19 21:41:31 +00:00
signalvar.h
In r198506, kern_sigsuspend() started doing cursig/postsig loop to make
2009-11-10 11:46:53 +00:00
sleepqueue.h
Add new msleep(9) flag PBDY that shall be specified together with
2009-07-14 22:52:46 +00:00
smp.h
Remove forward_roundrobin(), it is unused for quite some time.
2009-09-21 13:09:56 +00:00
snoop.h
…
sockbuf.h
Rework socket upcalls to close some races with setup/teardown of upcalls.
2009-06-01 21:17:03 +00:00
socket.h
Get rid of the _NO_NAMESPACE_POLLUTION kludge by creating an
2009-09-08 20:45:40 +00:00
socketvar.h
Fix poll(2) and select(2) for named pipes to return "ready for read"
2009-07-07 09:43:44 +00:00
sockio.h
Remove the interim vimage containers, struct vimage and struct procg,
2009-07-17 14:48:21 +00:00
sockopt.h
Factor sockbuf, sockopt, and sockstate out of socketvar.h in to separate headers.
2008-07-29 07:45:05 +00:00
sockstate.h
Factor sockbuf, sockopt, and sockstate out of socketvar.h in to separate headers.
2008-07-29 07:45:05 +00:00
soundcard.h
Move machine dependant AFMT_* definition from sound.h
2009-06-10 03:56:24 +00:00
stack.h
Add stack_print_short() and stack_print_short_ddb() interfaces to
2009-06-24 12:06:15 +00:00
stat.h
Various namespace cleanups, including exposing fchmod() and fchmodat()
2009-03-14 19:11:08 +00:00
statvfs.h
…
stddef.h
…
stdint.h
…
sun_disklabel.h
…
sx.h
When releasing a read/shared lock we need to use a write memory barrier
2009-09-30 13:26:31 +00:00
syscall.h
Regenerate
2009-10-27 11:01:40 +00:00
syscall.mk
Regenerate
2009-10-27 11:01:40 +00:00
syscallsubr.h
Current pselect(3) is implemented in usermode and thus vulnerable to
2009-10-27 10:55:34 +00:00
sysctl.h
Make it possible to change the vnet sysctl variables on jails
2009-08-13 10:26:34 +00:00
sysent.h
Add 'sy_flags', a currently unused per-syscall entry flags field that will
2009-06-01 16:13:06 +00:00
syslimits.h
Rework the credential code to support larger values of NGROUPS and
2009-06-19 17:10:35 +00:00
syslog.h
Namespace: vsyslog() is a BSD extension.
2009-03-14 19:07:25 +00:00
sysproto.h
Regenerate
2009-10-27 11:01:40 +00:00
systm.h
Add a new sysctl for reporting all of the supported page sizes.
2009-09-18 17:04:57 +00:00
taskqueue.h
Remove unused taskqueue_find() function.
2009-08-18 13:55:48 +00:00
termios.h
Add tcsetsid(3).
2009-05-07 13:49:48 +00:00
thr.h
Add thr_kill2 syscall which sends a signal to a thread in another process.
2007-08-16 05:26:42 +00:00
tiio.h
…
time.h
HZ is now 1000 on most platforms, update a comment.
2009-10-29 09:27:09 +00:00
timeb.h
…
timepps.h
…
timers.h
s/timer_t/int/g
2006-03-01 06:48:31 +00:00
times.h
…
timespec.h
…
timetc.h
…
timex.h
…
tree.h
In sys/tree.h:
2009-03-01 04:57:23 +00:00
tty.h
Move ptmx into pty(4).
2009-09-06 10:27:45 +00:00
ttycom.h
Perform cleanups to the TTY headers:
2009-09-06 09:39:40 +00:00
ttydefaults.h
Reduce the default baud rate of PTY's to 9600.
2008-11-08 20:40:39 +00:00
ttydevsw.h
Introduce a hooks layer for the MPSAFE TTY layer.
2008-09-22 19:25:14 +00:00
ttydisc.h
Add ttydisc_rint_simple().
2009-08-23 08:04:40 +00:00
ttyhook.h
Change ttyhook_register() second argument from thread to process pointer.
2008-12-13 21:17:46 +00:00
ttyqueue.h
Properly set the low watermarks when reducing the baud rate.
2009-10-19 07:17:37 +00:00
turnstile.h
Commit 3/14 of sched_lock decomposition.
2007-06-04 23:51:44 +00:00
types.h
Extend the device pager to support different memory attributes on different
2009-08-28 14:06:55 +00:00
ucontext.h
Remove various bits of conditional Alpha code and fixup a few comments.
2006-05-12 05:04:46 +00:00
ucred.h
Remove the interim vimage containers, struct vimage and struct procg,
2009-07-17 14:48:21 +00:00
uio.h
Change the type of uio_resid member of struct uio from int to ssize_t.
2009-06-25 18:46:30 +00:00
umtx.h
Add two commands to _umtx_op system call to allow a simple mutex to be
2008-06-24 07:32:12 +00:00
un.h
Now that portalfs doesn't directly invoke uipc_connect2(), make it a
2008-10-06 18:43:11 +00:00
unistd.h
Add NFSv4 ACL support to libc.
2009-06-25 12:46:59 +00:00
unpcb.h
Remove explicit locking of struct file.
2007-12-30 01:42:15 +00:00
user.h
Revert the changes to struct kinfo_proc in r194498. Instead, fill
2009-07-24 15:03:10 +00:00
utsname.h
…
uuid.h
…
vmmeter.h
Correct the description of v_cache_count. Eliminate an unused function.
2008-07-19 22:35:13 +00:00
vnode.h
Provide default implementation for VOP_ACCESS(9), so that filesystems which
2009-10-01 17:22:03 +00:00
vtoc.h
Add __packed to the part sub-structure to compensate for
2008-12-14 23:12:36 +00:00
wait.h
Implement WNOWAIT flag for wait4(2). It specifies that process whose status
2008-08-26 12:37:16 +00:00
watchdog.h
Align the interfaces for the various watchdogs and make the interface
2006-12-15 21:44:49 +00:00